Metal detector



FIG. 1 is a top plan view showing the new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front, top, and left side perspective view thereof;

FIG. 7 is a front, bottom, and left side elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

CLAIM The ornamental design for a metal detector, as shown anddescribed.